Hello everyone,

I'm encountering a critical deployment failure on Railway and would greatly appreciate your expertise in debugging this issue. Here's a complete breakdown of the problem:

Project Overview

• Repository:https://github.com/AidoTokihisa11/bot-discord

• Commit: c7155b9 (latest)

• Platform: Railway (us-west1 region)

• Build System: Nixpacks v1.38.0

• Stack: Node.js 22 + npm 9.x

• Framework: Discord.js

Error Description

The build fails silently during the image creation phase with no clear error message. The process stops abruptly after the COPY . /app command in Nixpacks.

Complete Logs

Nixpacks Output:

[Region: us-west1]
[stage-0 3/8] COPY .nixpacks/nixpkgs-*.nix ✔ 19s
[stage-0 8/8] COPY . /app
# Process terminates here with no further output

Railway UI Error:

- Deployment failed during build process
! Build > Build image: Failed to build an image
- Deploy: Not started
- Post-deploy: Not started

🛠 Troubleshooting Attempts

AttemptResultRebuild without cacheSame failureDowngrade to Node.js 20Identical behaviorVerified file permissionsNo issues foundLocal build with nixpacks build .

Technical Analysis

Project Structure:

bot-discord/
├── .nixpacks/
│   └── nixpkgs-*.nix
├── node_modules/ (38MB)
├── src/
├── package.json
└── index.js

Key Config Files:
package.json:

{
  "scripts": {
    "start": "node index.js",
    "build": ""
  }
}

.nixpacks/nixpkgs-*.nix:

{ pkgs ? import <nixpkgs> {} }:
pkgs.mkShell {
  buildInputs = [ pkgs.nodejs-22_x pkgs.npm ];
}

❓ Hypotheses

1. Size Limitations:

   • 38MB node_modules causing timeout during copy

   • Possible memory limits exceeded (2GB default on Railway?)

1. Compatibility Issues:

   • Node.js 22 too new for Nixpacks

   • Known issues with npm 9.x

1. Configuration Problems:

   • Empty build script in package.json

   • Missing files in Docker context

Specific Requests for Help

1. How to access complete build logs?

   • Are there hidden Docker/Nixpacks logs on Railway?

   • CLI command to get verbose output?

1. Alternative solutions:

   • Working Dockerfile example for Node.js 22

   • Optimal Nixpacks configuration for recent Node.js

1. Advanced debugging:

   • How to reproduce Railway's build constraints locally?

   • Tools to monitor memory usage during build?

Final Appeal

I've been stuck on this for days and would deeply appreciate any assistance. I'm available to:

• Provide temporary project access

• Run additional tests

• Supply more information as needed

Thank you in advance for your time and expertise!